एपीए उद्धरण

Pride, N. (2001). Smoking cessation: Effects on symptoms, spirometry and future trends in COPD. BMJ Group.

शिकागो स्टाइल उद्धरण

Pride, N. Smoking Cessation: Effects On Symptoms, Spirometry and Future trends in COPD. BMJ Group, 2001.

एमएलए उद्धरण

Pride, N. Smoking Cessation: Effects On Symptoms, Spirometry and Future trends in COPD. BMJ Group, 2001.